Herculean
Webster's Practical Dictionary- A Practical Dictionary of the Englih Language · 1884 · p. 189
her-kif le-an,'er. Very great, difficult, or dangerous; having extraordinary strength and size.
Bu kavram başka kaynaklarda da geçiyor
The American Dictionary and Cyclopedia (1910)
Chamber's Twientieth Century Dictionary (1908)
The Century Dictionary: The Encyelopedic Lexicon of the English Language (1887)
A Military Dictionary and Gazetteer (1881)
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